0 the force that keeps an object moving or keeps an event developing after it has started -- 動量，衝量；衝力；推動力；動力
Once you push it, it keeps going under its own momentum. 一旦你推動了它，它就會在自己的動量作用下持續運動。
The spacecraft will fly around the earth to gain/gather momentum for its trip to Jupiter. 太空船將繞著地球飛行以獲取飛向木星所需的動力。
The play loses momentum (= becomes less interesting, energetic, etc.) by its half way stage. 這部戲演到一半時就沒看頭了。
In an attempt to give new momentum to their plans, the committee set a date for starting detailed discussions. 為了為他們的計劃賦予新的動力，委員會定好了開始討論細節的日期。
The campaign has been gaining momentum ever since the television appeal.
The campaign for an elected mayor seems to have lost momentum.
They are usually accompanied by relatively low pressure at their centres, and are a major source of momentum transport towards the walls.
Three regions are shown for different trapped particles in momentum space.
Theoretical considerations on the momentum and energy transfer to small particles of different material during passage of the measuring volume were discussed.
Similarly, any determination of the energy and momentum of the particles demands that we renounce their exact coordination in time and space.
